Chuck



FIG. 1 is a bottom view of a chuck embodying the design of the present invention;

FIG. 2 is a side view of a chuck in accordance with the present invention;

FIG. 3 is a top view of a chuck in accordance with the present invention;

FIG. 4 is another side view of a chuck in accordance with the present invention;

FIG. 5 is another side view of a chuck in accordance with the present invention;

FIG. 6 is a bottom perspective view of a chuck in accordance with the present invention; and,

FIG. 7 is a front perspective view of a chuck in accordance with the present invention. 

The ornamental design for a chuck, as shown and described. 